CN113892218A - Section bar for electric cabinet - Google Patents
Section bar for electric cabinet Download PDFInfo
- Publication number
- CN113892218A CN113892218A CN202080039541.9A CN202080039541A CN113892218A CN 113892218 A CN113892218 A CN 113892218A CN 202080039541 A CN202080039541 A CN 202080039541A CN 113892218 A CN113892218 A CN 113892218A
- Authority
- CN
- China
- Prior art keywords
- wall
- profile according
- tab
- profile
- partition wall
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000005192 partition Methods 0.000 claims abstract description 23
- 238000007789 sealing Methods 0.000 claims abstract description 16
- 238000002788 crimping Methods 0.000 claims description 13
- 230000002787 reinforcement Effects 0.000 claims description 7
- 230000003014 reinforcing effect Effects 0.000 claims description 6
- 239000002184 metal Substances 0.000 abstract description 14
- 238000002955 isolation Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000010276 construction Methods 0.000 description 4
- 238000003466 welding Methods 0.000 description 4
- 230000008595 infiltration Effects 0.000 description 2
- 238000001764 infiltration Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000001902 propagating effect Effects 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/18—Construction of rack or frame
- H05K7/183—Construction of rack or frame support rails therefor
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/28—Casings; Parts thereof or accessories therefor dustproof, splashproof, drip-proof, waterproof or flameproof
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/01—Frameworks
- H02B1/013—Profiles for cabinet frames
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Casings For Electric Apparatus (AREA)
Abstract
The present invention is in the field of metal profiles for structural elements, and more particularly in the field of metal profiles for electrical cabinets and cabinets. The section bar includes: lateral sealing zones, inner walls, rear walls, outer walls, inclined walls and partition walls, preferably positioned at 90 ° with respect to the front sealing zone.
Description
Technical Field
The invention is included in the field of application of metal profiles for structural elements, more precisely electrical cabinets and enclosures.
Background
Electrical cabinets and enclosures are widely used in the industry. The basic functions of the electrical cabinet and enclosure include: providing a useful area for electrical and electronic component assembly, preventing unauthorized access to these elements by unauthorized personnel, and in some cases protecting such electrical and electronic components from dust and external moisture.
Several types of structures are used in the construction of electrical cabinets, such as welded structures, merged structures, tubular structures, and metal profile structures. Metal profiles represent an important constructive form, which is widely used in the manufacture of cabinets, due to the ease of handling and the ease of transport and assembly in the installation site.
In view of the industrial application of metal profiles and the high currents and voltages to which these metal profiles are subjected, some electrical cabinets have a series of safety standards: these safety standards are intended to demonstrate that electrical cabinets are able to withstand possible short circuits without propagating a flame or explosion. Therefore, the metal profiles, together with other elements forming the structure of the electrical cabinet, must be able to promote the isolation of the internal environment of the electrical cabinet from the external environment.
Another important feature of the electrical cabinet profile is the space occupation. The more space occupied by the profile, the less useful area for assembling the component. Thus, in addition to meeting component assembly requirements and providing a strong and stable structure, it is also important that the profile is compact and provides the largest useful area possible.
The prior art proposes profiles having different shapes and characteristics. Among these, mention may be made of those profiles described in documents US6231142, US6808240, WO2003105552 and WO 2015117597.
Document US6231142 proposes a profile having a complex form, the profile having several edges which make the construction of the profile difficult. In addition, the profile has several curves and variations in its lateral direction, which takes up more space and thus makes the useful area in the cabinet smaller. Another problem related to the cabinet proposed in this document is that the tightness of the cabinet may be impaired by the holes for fastening, resulting in infiltration.
Document WO2015117597 proposes a very simple profile; however, if the profile is made from folded sheet metal, welding will be required to provide structural rigidity. Another problem with profiles is that the sealing area of the profile is narrow and may therefore lead to infiltration. The profile proposed in this document presents the problem of structural weakness due to the lack of internal elements that impart rigidity to the profile, and this weakness results in the need to use larger profiles, reducing the useful area inside the cabinet.
It can therefore be shown that the solutions proposed in the prior art do not completely solve the conditions for providing metal profiles that are easy to manufacture. Furthermore, these solutions also fail to provide a section bar that occupies the least amount of space possible and therefore provides the largest useful area inside the cabinet. Finally, these solutions do not propose profiles that provide complete insulation between the inner zone and the outer zone.
Disclosure of Invention
The present invention relates to an easy-to-manufacture metal profile having its own geometry and high structural rigidity, which allows it to be used with a smaller width, thus providing a larger useful assembly area inside the cabinet.
The aim of the invention is to provide a metal profile that can present a high degree of isolation between the internal and external regions of an electrical cabinet.
Another object of the invention is to provide a metal profile which is simple and inexpensive to manufacture.
Another object of the invention is to provide a profile with parts that are easy to assemble.
And finally, another object of the present invention is to provide a metal profile that occupies less space and therefore provides a greater useful area inside the cabinet.
Drawings
The subject matter of this specification will be fully understood in its technical aspects from the following detailed description, which is made on the basis of the listed drawings, in which:
figure 1 shows a top view of an embodiment of the profile, in which the configuration of a single folded sheet with overlapping layers can be observed;
fig. 2 shows a top view of another embodiment of the profile, in which the configuration of a single folded sheet with overlapping layers and hole deep-drawn parts can be observed;
fig. 3 shows a top view of an embodiment of the profile, wherein the isolation between the inner zone and the outer zone provided by the profile can be observed;
figure 4 shows a rear perspective view of an embodiment of the profile, in which the fastening means of the internal component can be seen;
figure 5 shows a perspective view of an embodiment of the profile, in which the fastening means of the outer part on the inclined wall are observed; and
fig. 6 shows a perspective view of an embodiment of the profile, in which the hole deep-drawn parts featuring the fastening means and the cut-outs for welding on the inclined walls can be seen.
Detailed Description
According to the mentioned figures, the profile for an electrical cabinet of the invention comprises a profile (P) having: a side sealing region (VL) and a front sealing region (VF) preferably positioned at 90 ° with respect to the side sealing region (VL); the inner wall (1), the rear wall (2), the outer wall (3), the inclined wall (4) and the partition wall (6).
The inner walls (1) are connected to the rear wall (2) forming an angle of 90 ° with each other. The rear wall (2) is connected at the end opposite the inner wall (1) to an outer wall (3) parallel to the inner wall (1).
The reinforcing tab (5) is connected to the outer wall (3) at an end opposite the rear wall (2) and distal from the inner wall (1). The reinforcement tab (5) is bent at an angle of 180 DEG, and one of the sides of the reinforcement tab (5) is coupled to the outer wall (3) and the other side is connected to the partition wall (6).
The partition wall (6) is aligned with one of the sides of the reinforcing tab (5) and advances towards the inner wall (1) until the partition wall (6) and the inner wall (1) contact each other.
The initial crimping tab (7) is connected to the dividing wall (6) at an end immediately adjacent the inner wall (1). The initial crimping tab (7) is advanced in close proximity to an engagement wall (9), the engagement wall (9) being an extension of the inner wall (1).
The front tab (AF) has a 'U' -shape and is positioned around the end of the initial crimping tab (7). One of the sides of the front tab portion (AF) is connected to the engagement wall (9) and the other side is connected to the inclined wall (4). The front tab portion (AF) has a front seal region (VF) at a bent portion of the front tab portion (AF).
The inclined wall (4) advances towards a reinforcing tab (5) connected to the side tab (AL). The side tab (AL) has a 'U' -shape and surrounds the reinforcement tab (5), and the bent portion of the side tab (AL) has a side seal region (VL).
The inner, rear, outer and partition walls (1, 2, 3, 6) form a tubular region. This tubular region is referred to as the working range (8), which working range (8) is the region for accommodating screws, mounting nuts and other items to assist in fastening that may be required for electrical cabinet assembly.
The inner, rear, outer and inclined walls (1, 2, 3 and 4) have a plurality of fastening means (10), preferably holes, which may be square, rectangular, circular or even a combination thereof; additionally, the hole may have a deep-drawn portion (101) to improve fixation due to an increase in thread area.
In an embodiment of the invention, the side tab portions (AL) are removed. In this form of construction, the outer wall (3) is directly connected to the partition wall (6), and the inclined wall (4) has one of its ends of the inclined wall (4) abutting against an edge formed between said outer wall (3) and the partition wall (6). In this embodiment, the ends of the inclined walls (4) are preferably welded, and may contain cut-outs (11) to facilitate the welding process. In this embodiment, the side sealing region (VL) is located on the completely closed outer wall (3) without the fastening means (10).
In an embodiment of the invention, the partition wall (6) may have a deflection (61) before contacting the inner wall (1).
In a preferred embodiment of the invention, the profile (P) is constructed from a single folded sheet.
In an embodiment of the invention, the inner working range (8) has a right-angled quadrilateral shape, i.e. a square or a rectangle.
The profile (P) can provide complete isolation between the inner region (AI) and the outer region (AE) by means of the sealing regions (VF and VL), the separating wall (6) and the initial crimping tab (7).
The overlap with the front tab (AF) and the initial crimping tab (7) forms three layers and also means that the initial crimping tab (7) and the abutment wall (9) form a double layer, which, in addition to promoting structural reinforcement in the profile (P), can improve and ensure sealing. This structural reinforcement allows the profile (P) to be built with a reduced width, occupying a smaller area in the cabinet, thus providing a larger useful area for the components to be assembled. This increase in useful area is noticeable when several cabinets are used or several profiles are required to assemble the cabinet.
The profile (P) arrangement presented herein, in addition to providing complete isolation between the inner and outer regions, can also provide for easy assembly of electrical cabinets or panels, thus providing greater safety.
The invention also highlights the possibility of construction with or without the need for welding, eliminating process steps and therefore reducing production costs.
The concept of the profile (P) is specifically designed for its use in assembling electrical cabinets, allowing to meet short circuit requirements, in particular the requirements of protection class IP 54.
It is to be understood that the description is not limited in application to the details described herein, and that the invention is capable of other embodiments and of being practiced or of being carried out in various ways within the scope of the claims. Although specific terms are employed, they are to be interpreted in a generic and descriptive sense only and not for purposes of limitation.
Claims (36)
1. Profile for an electrical cabinet, characterized in that it (P) comprises: a side sealing region (VL) and a front sealing region (VF) preferably positioned at 90 DEG with respect to said side sealing region (VL); the inner wall (1), the rear wall (2), the outer wall (3), the inclined wall (4) and the partition wall (6).
2. Profile according to claim 1, characterized in that the inner walls (1) are connected to the rear wall (2) so as to form an angle of 90 ° with each other.
3. Profile according to claim 1 or 2, characterized in that the rear wall (2) is connected to the outer wall (3) parallel to the inner wall (1).
4. Profile according to claim 3, characterized in that, in the end opposite the rear wall (2) and remote from the inner wall (1), the profile (P) has a reinforcing tab connected to the outer wall (3); wherein the reinforcement tab (5) is bent at an angle of 180 ° and has a first side connected to the outer wall (3).
5. Profile according to claim 4, characterized in that the stiffening tab (5) has a second side connected to the partition wall (6).
6. Profile according to claim 5, characterized in that the partition wall (6) is aligned with one of the sides of the reinforcing tab (5).
7. Profile according to claim 5 or 6, characterized in that the partition wall (6) is advanced towards the inner wall (1) until the partition wall (6) and the inner wall (1) are in contact with each other.
8. Profile according to claim 7, characterized in that an initial crimping tab (7) is connected to the partition wall (6) at the end immediately adjacent to the inner wall (1).
9. Profile according to claim 8, characterized in that the initial crimping tab (7) is advanced next to an engagement wall (9), the engagement wall (9) being an extension of the inner wall (1).
10. Profile according to claim 8 or 9, characterized in that a front tab (AF) has a "U" shape and is positioned around the end of the initial crimping tab (7).
11. Profile according to claim 10, characterized in that one of the sides of the front tab (AF) is connected to the joining wall (9).
12. Profile according to claim 11, characterized in that the inclined wall (4) is connected to the other side of the front tab (AF).
13. Profile according to claim 10, 11 or 12, characterized in that the front tab (AF) has the front sealing area (VF) at a curved portion of the front tab (AF).
14. Profile according to claim 13, characterized in that the inclined wall (4) is advanced towards the reinforcement tab (5) connected to the side tab (AL) of the inclined wall (4).
15. Profile according to claim 14, characterized in that said lateral tab (AL) has a "U" shaped profile and surrounds said reinforcing tab (5).
16. Profile according to claim 14 or 15, characterized in that the lateral tab (AL) has the lateral sealing zone (VL) at the bend of the lateral tab (AL).
17. Profile according to claim 1, 2 or 3, characterized in that the outer wall (3) is connected to the partition wall (6) forming an angle of 90 °.
18. Profile according to claim 17, characterized in that the partition wall (6) is advanced towards the inner wall (1) until the partition wall (6) and the inner wall (1) are in contact with each other.
19. Profile according to claim 17, characterized in that said partition wall (6) advances towards said inner wall (1) and has a deflector (61) before contacting said inner wall (1).
20. Profile according to claim 18, characterized in that an initial crimping tab (7) is connected to the partition wall (6) at the end next to the inner wall (1).
21. Profile according to claim 19, characterized in that an initial crimping tab (7) is connected to the deflection (61) of the partition wall (6) at the end next to the inner wall (1).
22. Profile according to claim 20 or 21, characterized in that the initial crimping tab (7) is advanced next to an engagement wall (9), the engagement wall (9) being an extension of the inner wall (1).
23. Profile according to claim 22, characterized in that a front tab (AF) has a "U" shape and is positioned around the end of the initial crimping tab (7).
24. Profile according to claim 23, characterized in that one of the sides of the front tab (AF) is connected to the joining wall (9).
25. Profile according to claim 24, characterized in that an inclined wall (4) is connected to the other side of the front tab (AF).
26. Profile according to claim 23, 24 or 25, characterized in that the front tab (AF) has a front sealing area (VF) at the curved portion of the front tab (AF).
27. Profile according to claim 25 or 26, characterized in that the inclined wall (4) has one of its ends of the inclined wall (4) next to an edge formed between the outer wall (3) and the partition wall (6).
28. Profile according to claim 27, characterized in that the end of the inclined wall (4) has a cut (11).
29. Profile according to claim 27 or 28, characterized in that the ends of the inclined walls (4) are welded.
30. Profile according to claim 27, 28 or 29, characterized in that the side sealing zones (VL) are on the outer wall (3).
31. Profile according to any one of the preceding claims, characterized in that the inner wall (1), the rear wall (2), the outer wall (3) and the partition wall (6) form a working range (8) in their interior.
32. Profile according to any one of the preceding claims, characterized in that the inner wall (1), the rear wall (2), the outer wall (3) and the rear wall (4) have a plurality of fastening means (10).
33. Profile according to claim 32, characterized in that the fastening means (10) are holes.
34. Profile according to claim 33, characterized in that the holes of the fastening device (10) are a combination of square, rectangular and circular holes.
35. Profile according to claim 33 or 34, characterized in that the hole has a deep-drawn part (101).
36. Profile according to any one of the preceding claims, characterized in that the profile (P) is built up in the form of a single folded sheet.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BR102019010954-8A BR102019010954A2 (en) | 2019-05-28 | 2019-05-28 | PROFILE FOR ELECTRICAL CABINET |
| BRBR102019010954-8 | 2019-05-28 | ||
| PCT/BR2020/050182 WO2020237336A1 (en) | 2019-05-28 | 2020-05-26 | Profile for electrical cabinet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113892218A true CN113892218A (en) | 2022-01-04 |
| CN113892218B CN113892218B (en) | 2024-03-08 |
Family
ID=73551901
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202080039541.9A Active CN113892218B (en) | 2019-05-28 | 2020-05-26 | Section bar for electric cabinet |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20220320837A1 (en) |
| EP (1) | EP3979443A4 (en) |
| CN (1) | CN113892218B (en) |
| BR (1) | BR102019010954A2 (en) |
| WO (1) | WO2020237336A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BR102019010955B1 (en) * | 2019-05-28 | 2023-04-11 | Melquisedec Francisquini | STRUCTURAL PROFILE FOR ELECTRICAL CABINETS |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4643319A (en) * | 1983-12-09 | 1987-02-17 | Rittal-Werk Rudolf Loh Gmbh & Co. Kg | Framework for a switchboard cabinet |
| JP2003078265A (en) * | 2001-09-06 | 2003-03-14 | Nitto Electric Works Ltd | Frame connection structure of cabinet for accommodating electrical/electronic equipment |
| CN1784815A (en) * | 2003-04-03 | 2006-06-07 | 梅尔基塞代克·弗朗西斯基尼 | Frame member for a switchgear cabinet frame |
| CN201413934Y (en) * | 2009-04-20 | 2010-02-24 | 北京中煤电气有限公司 | Nine-folder sectional material dynamic cabinet |
| CN202697075U (en) * | 2012-03-27 | 2013-01-23 | 西安铁路信号有限责任公司 | 8-fold steel section bar for power electronic cabinet |
| CN204205326U (en) * | 2014-09-17 | 2015-03-11 | 深圳市禾望电气股份有限公司 | A kind of nine folded section cabinets and and cabinet |
| CN204994176U (en) * | 2015-08-12 | 2016-01-20 | 苏州东山精密制造股份有限公司 | Communication rack is section bar by fifty percent discount |
| US20160352080A1 (en) * | 2014-02-05 | 2016-12-01 | Rittal Gmbh & Co. Kg | Profiled frame of a frame structure for an electrical enclosure or a distribution cabinet |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19853611C1 (en) | 1998-11-20 | 2000-04-06 | Skeppner Hans | Electrical equipment cabinet has attachment strip with a row of holes between sealing edges or surfaces, enabling covering elements to be attached without penetrating wall of frame profile |
| DE10136681C2 (en) | 2001-07-27 | 2003-10-02 | Eldon Holding Ab Rijswijk | frame |
| BR0201155A (en) * | 2002-03-13 | 2003-12-02 | Melquisedec Francisquini | Profile for composing electrical panel structures |
| BR0202231A (en) | 2002-06-06 | 2004-04-27 | Melquisedec Francisquini | Improvement in metallic profile for composition of structures for mounting electrical panels |
| DE102010033319A1 (en) * | 2010-08-04 | 2012-02-09 | Protektorwerk Florenz Maisch Gmbh & Co. Kg | Cabinet profile, in particular control cabinet profile and cabinet, in particular control cabinet |
| DE102015121193B4 (en) * | 2015-12-04 | 2017-07-13 | Rittal Gmbh & Co. Kg | Framework for a control cabinet arrangement |
-
2019
- 2019-05-28 BR BR102019010954-8A patent/BR102019010954A2/en unknown
-
2020
- 2020-05-26 EP EP20814915.3A patent/EP3979443A4/en active Pending
- 2020-05-26 WO PCT/BR2020/050182 patent/WO2020237336A1/en unknown
- 2020-05-26 CN CN202080039541.9A patent/CN113892218B/en active Active
- 2020-05-26 US US17/614,109 patent/US20220320837A1/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4643319A (en) * | 1983-12-09 | 1987-02-17 | Rittal-Werk Rudolf Loh Gmbh & Co. Kg | Framework for a switchboard cabinet |
| JP2003078265A (en) * | 2001-09-06 | 2003-03-14 | Nitto Electric Works Ltd | Frame connection structure of cabinet for accommodating electrical/electronic equipment |
| CN1784815A (en) * | 2003-04-03 | 2006-06-07 | 梅尔基塞代克·弗朗西斯基尼 | Frame member for a switchgear cabinet frame |
| CN201413934Y (en) * | 2009-04-20 | 2010-02-24 | 北京中煤电气有限公司 | Nine-folder sectional material dynamic cabinet |
| CN202697075U (en) * | 2012-03-27 | 2013-01-23 | 西安铁路信号有限责任公司 | 8-fold steel section bar for power electronic cabinet |
| US20160352080A1 (en) * | 2014-02-05 | 2016-12-01 | Rittal Gmbh & Co. Kg | Profiled frame of a frame structure for an electrical enclosure or a distribution cabinet |
| CN204205326U (en) * | 2014-09-17 | 2015-03-11 | 深圳市禾望电气股份有限公司 | A kind of nine folded section cabinets and and cabinet |
| CN204994176U (en) * | 2015-08-12 | 2016-01-20 | 苏州东山精密制造股份有限公司 | Communication rack is section bar by fifty percent discount |
Also Published As
| Publication number | Publication date |
|---|---|
| BR102019010954A2 (en) | 2020-12-08 |
| EP3979443A1 (en) | 2022-04-06 |
| WO2020237336A1 (en) | 2020-12-03 |
| EP3979443A4 (en) | 2023-06-21 |
| CN113892218B (en) | 2024-03-08 |
| US20220320837A1 (en) | 2022-10-06 |
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